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  • 30/04/2026

    FEATURE| Zinc Coating: The Most Cost-Effective Corrosion Protection for Steel Structures

    This article contains engineering technical information on the selection of galvanized coatings for corrosion protection, covering the mechanisms, process comparisons, international standards, thickness testing methods, and selection recommendations based on environmental corrosion levels for hot-dip galvanizing and electro-galvanizing, for reference only.

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  • 30/03/2026

    FEATURE|Green Steel Buyers’ Guide: CBAM 2026, Carbon Costs & Low-Carbon Certifications Explained

    This article primarily outlines the core framework and cost accounting logic of the CBAM 2026 policy, clarifies the essential differences between terms such as "green steel," "low-carbon emission steel," and "near-zero emission steel," and interprets the "hard currency" status of the EPD (Environmental Product Declaration) in international procurement. It aims to help international buyers see through the fog of "green labels" and make informed procurement decisions in the new era of green trade.

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  • 03/03/2026

    FEATURE| Complete Guide to Color Steel Tiles: Structure, Performance, and Comparison

    This article comprehensively covers the definition, classification (single-layer panels and sandwich composite panels), model specifications and characteristics of various panel types, performance advantages, and fire safety precautions for color steel tiles (profiled steel sheets). Through a multi-dimensional comparison with colored stone tiles, it elucidates the fundamental differences between the two materials in terms of composition, performance, and applications.

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  • 29/01/2026

    FEATURE| Complete List and Selection Reference of Industrial Pipe Fittings

    This article comprehensively explores the pivotal role of pipe fittings as the “joints” of piping systems. It provides a detailed explanation of their definition, common types and functions, performance characteristics of different materials, and selection criteria. Furthermore, it analyzes the current industry trends toward high-end, intelligent, and green development.

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  • 29/12/2025

    FEATURE| Steel Pipe Coating System Guide: Selection, Application to Delivery Practice

    This article comprehensively outlines the importance, technical classification, inspection and transportation essentials, engineering selection methodology, and future trends of steel pipe coatings, serving as a complete technical guide for engineering projects.

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  • 28/11/2025

    FEATURE| Corrugated Steel Culvert: The Solution for Cost Reduction and Efficiency Improvement in Infrastructure Engineering

    Using corrugated steel culverts instead of traditional concrete culverts for culvert construction offers unparalleled advantages in terms of construction time, cost, and environmental benefits. These trends collectively point to a safer, smarter, and more sustainable infrastructure future.

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  • 02/12/2024

    FEATURE| Main Shipping Routes for International Logistics Transportation

    The routes of maritime transport are distributed between the oceans, which is also the advantage of maritime transport over other modes of transport. When choosing a route, the conditions of the cargo, ships, and ports must be considered, and a comprehensive assessment of the system organization must be made before a reasonable choice can be made.

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Short News
11/05 17:32
< On May 11, the price of scaffolding steel pipe in Tianjin has not risen significantly. 20# (ASTM 1020) YIZHOUDA 38*600(Brace) 739.91, up 1.47. (USD/ton)
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11/05 17:12
< On May 11, the price of stainless steel welded pipe in Wenzhou fell slightly. 304 common Φ40*40*3 (rough, square tube) 2327.12, down 16.18. (USD/ton)
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11/05 17:11
< On May 11, the price of steel-plastic composite pipe in Guangzhou remained stable. Q235 (ASTM A36 Gr.D) Ronggang DN150 (6"*4.0mm) plastic-coated, 1023.82. (USD/ton)
11/05 17:10
< On May 11, the price of Stainless Steel Strip Coil in Foshan did not change significantly. 304/NO.1 Dingxin 3.0*485-730 (hot rolled, slit edge) 2206.50. (USD/ton)
11/05 17:09
< On May 11, the price of 300 series hot-rolled stainless steel coil rose in Wuxi. 310S/NO.1 TISCO 5.0*1520*C (mill edge) 5288.24, up 51.48; 304/NO.1 TISCO 6.0*1520*C (mill edge) 2287.41, up 29.42. (USD/ton)
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11/05 17:07
< On May 11, the price of stainless steel round bars rose in Wenzhou. TP304 (304) Qingshan Φ100mm 2228.57, up 117.68. (USD/ton)
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Answers

  • What are the applications of tinplate products?

    Tinplate (tin-plated steel) is primarily used in food and beverage packaging, such as cans, milk powder tins, and beverage bottle caps. It is also widely used in industrial containers for chemicals, paints, and aerosols, as well as in hardware and electronic products such as battery casings and electronic components. In addition, it is commonly used in gift boxes, tea tins, toys, and other daily necessities.


  • Corrosion Resistance Levels of Hot-Dip Galvanized Pipes?

    The corrosion resistance of hot-dip galvanized pipes mainly depends on the zinc layer thickness and process quality. Internationally accepted grading standards are based on the zinc layer's unit area weight (g/m²) and microstructure:
    Level 1 (Standard): Zinc layer thickness 85-120μm (600-900g/m²), using pure zinc coating, suitable for ordinary inland atmospheric environments, with an expected lifespan of 15-20 years.
    Level 2 (Reinforced): Zinc layer 120-200μm (900-1500g/m²), with the addition of 0.3%-0.6% aluminum to form a Zn-Al alloy layer, improving weather resistance by 30%, suitable for high-humidity coastal areas.
    Level 3 (Heavy-Duty): Zinc layer ≥200μm (above 1500g/m²), using a hot-spray zinc coating + sealed coating composite process, with salt spray resistance exceeding 5000 hours, suitable for C5-level corrosive environments such as chemical plants and offshore platforms.
    Level 4 corrosion protection (special grade): Based on Level 3, an epoxy coal tar pitch or PE coating is added to form a dual protection system of "zinc layer + organic coating", and the service life of buried pipelines can reach 50 years.


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